Gas-lamp.



No. 768,994. PATENTED AUG. 30, 1904.

A. H. HUMPHREY.

GAS LAMP.

APPLICATION FILED SEPT. 23, 1903.

H0 MODEL. 3 SHEETFSHEET 1.

Witgesses:

N0 MODEL.

No. 768,994. PATENTED AUG. 30, 1904. A, H. HVUMPHREY.

.GAS LAMP.

APPLICATION FILED SEPT. 23, 1903.

' 3 SHEETS-SHEET 2.

Witrgesses.

PATENTED AUG. 30, 1904.

A. H. HUMPHREY.

' GAS LAMP.

APPLIOATION FILED SEPT. 2a, 1903.

3 SHEETS-SHEET 3.

N0 MODEL.

UNITED STATES Patented August 30, 1904.

ALFRED H. HUMPHREY, OF KALAMAZOO, MICHIGAN.

GAS-LAMP.

SPECIFICATION forming part of Letters Patent No. 768,994, dated August 30, 1904.

Application filed September 23,1908. Serial No. 174,307. (No model.)

To all whom. it may concern:

Be it known that I, ALFRED H. HUMPHREY, a citizen of the United States, residing at the city of Kalamazoo, in the county of Kalama- ZOO and State of Michigan, have invented certain new and useful Improvements in Gas- Lamps, of which the following is a specification.

This invention relates to improvements in gas-lamps. 7

It is particularly adapted to gas-lamps hav ing a plurality or cluster of incandescent burners, although it is desirable for use in other relations.

The objects of the invention are, first, to provide an improved gas-lamp having burners incased in a globe, which burners are fully. protected and at the same time readlly ac-' cessible; second, to provide an improved gaslamp in which the globe is securely supported and at the same time may be quickly removed or placed in position; third, to provide an improved gas-lamp which may be readily adjusted for cleaning or repairing.

Further objects and objects relating to structural details will definitely appear in the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification.

The invention is clearly defined and pointed out in the claims.

A structure embodying the features of my invention is fully illustrated in the accompanying drawings, forming a part of this specification, in which- Figure 1 is a side elevation view of a gaslamp embodying the features of my invention. Fig. 2 is a detail sectional view taken on line 2 2 of Fig. 1, portions being shown in full lines to show arrangement of the parts. Fig. 3 is an enlarged detail vertical sectional view through the globe-supporting band, showing the structure thereof. of the air-excluding plate g. Fig 5 is a detail vertical sectional view corresponding to that shown in Fig. 2 of a modified construction embodying the features of my invention.

In the drawings similar letters of reference Fig. L is a plan view refer to similar parts throughout the several views.

Referring to the lettered parts of the drawings, A represents the gas-supply pipe, which in this instance forms the support for the lamp. On the lower end of the gas-supply pipe A is a T member A, to which the depending deliverypipes B are secured. The burners 0. are supported on a centrally-arranged chamber C. This chamber is connected to the delivery-pipe B by hollow brackets C, having inwardly and downwardly projecting arms. A suitable valve is provided for the burners. Supported on the brackets G and projecting upwardly within the delivery pipes B are tubes 0, closed at their upper end, in which the supporting-rods c are adapted to reciprocate. The rods (4 are arranged through the perforated plugs a" in the lower end of the tubes 0 and are provided with heads a at their upper ends to serve as stops and to prevent their being withdrawn from the tube. Secured to the lower ends of the rods a by the brackets (Z is a casing D, on which the globe holder band is mounted. The globe-holder band is formed of a single piece of sheet metal folded upon itself to form an inner band E, adapted to closely embrace the casing D, and an outer upwardly and outwardly flaring band E, upon the upper end of which the globe, as I, rests. Carried by the outer band E of the globesupport are a pair of toothed pinions a, adapted to engage the corrugations D, formed in the casing D. Sleeved upon the outer band E of the globe-support is a band F, which is adapted to revolve thereon. The upper edge of the band F engages the pinions e and locks the same. The band F is provided with notches at a, so that the band may be adjusted to allow'the pinions e to revolve, and thereby release the globe-supporting band. It is eviburners cannotbe injured thereby.

is not desired to remove the globe, access may be had to the burners by lowering the entire casing and globe-support. This is accomplished by disengaging the spring-catches f, which are secured to the brackets C and arranged through suitable notches in the easing D, so that the same is held in position thereby. \Vith these spring-catches released the casing D and its attached parts drop downwardly as far as permitted by the rods (4, by which it is securely supported. This permits free access to the burners for cleaning, repairing, replacing mantles, and the like. The globe is guided so that there is no danger of breaking the mantles in removing or replacing the globe.

Arranged within the casing D is a floorplate g, through which the valve-stems for the burners and the main valve-stem are arranged. This plate is slotted at g to permit the manipulation of the spring-catches f. Slides h are provided for closing the openings g, so that a draft from the bottom of the lamp is prevented. These slides 70 are thin plates, adapted to rest upon the plate g, and are secured to the catches f and slide back and forth on the plate g as the catches are manipulated, completely closing the openings 9 when the catches are in their normal position.

In the modified construction (shown in Fig. 5) the parts aresupported directly on the supply-pipe A, the T-shaped member A and the delivery-pipes B being omitted. The chamber C is here supported by the hollow bracket K, secured to the lower end of the pipe A. The tube 0 is arranged within the pipe A, and the supporting-rod a is passed through the burnensupport C and the casing D secured thereto by the cross-piece (Z. In this modified construction the spring-catches f are secured to the burner-support C instead of the bracket C, the operation of the parts being the same.

I have illustrated and described my improved gas-lamp in the form preferred by me on account of its economy in production and convenience and economy in use. I am aware u that it is capable ofconsiderable structural variation without departing from my invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a gas-lamp, the combination of a supply-pipe A; a T-shaped member A thereon; pipes B depending therefrom; a centrally-an ranged chamber 0 having burners thereon; hollow brackets C on the lower end of said pipes B connected to said chamber C; tubes 0, closed at their inner ends, arranged within said pipes B; rods (0 having heads on their inner ends, adapted to reciprocate in said tubes 0; a casing 1), having corrugations D therein, secured to the lower ends of said rods a; a globesupport consisting of an inner band E adapted to closely embrace said casing D, and an outer outwardly and upwardly projecting band E; toothed pinions 0 carried by said band E, adapted to engage said corrugations D; a locking-band F sleeved upon said band E adapted to engage the teeth of said pinions (9, whereby they are locked against rotation;

notches c' in said band F; spring-catches f carried by said bracket 0, adapted to engage said casing D, whereby the same is retained in position; a bottom plate 9 for said casing D, having notches g therein to permit the operation of said spring-catches f and plates 7t carried by said spring-catches f, all coacting for the purpose specified.

2. In a gas-lamp, the combination of a supply-pipe A; a T-shaped member A thereon; pipes B depending therefrom; a centrally-arranged chamber C having burners thereon; hollow brackets C on the lower ends of said pipes B connected to said chamber C; tubes 0, closed at their inner ends, arranged within said pipes B; rods a, having heads on their inner ends, adapted to reciprocate in said tubes 0; a casing D, having corrugations D therein, secured to the lower ends of said rods (0; a globe-support consisting of an inner band E adapted to closely embrace said casing D, and an outer outwardly and upwardly projecting band E; toothed pinions @carried by said band E, adapted to engage said corrugations D; a locking-band F sleeved upon said band E adapted to engage the teeth of said pinions awhereby they are locked against rotation; notches in said band F; springcatches f carried by said bracket C, adapted to embrace said casing D, whereby the same is retained in position; all coacting for the purpose specified.

3. In a gas-lamp, the-combination of a downwardly-depending supply-pipe; a burner connected therewith; a tube closed at its inner end arranged within said supply-pipe; a supporting-rod adapted to reciprocatewithin said tube; a casing having corrugations therein secured to the lower end of said rod; catches for retaining said casing in its normal position; a globe-support consisting of an inner band adapted to closely embrace said casing, and an outer band projecting outwardly and upwardly; toothed pinions carried by said outer band adapted to engage the corrugations on said casing, all coacting for the purpose specified.

4. In a gas-lamp, the combination of a downwardly-depending pipe; a burner connected therewith; a tube, closed at its inner end. arranged within said pipe; a supportingrod adapted to reciprocate within said tube; a casing having corrugations therein secured to the lower end of said rod; catches "for retaining said casing in its normal position; a globe-support consisting of an inner band adapted to closely embrace said casing, and

an outer band projecting outwardly and up-' wardly; toothed pinions carried by said outer band adapted to engage the corrugations on said casing; and a suitable lock for said pinions, all coacting for the purpose specified.

5. In a gas-lamp, the combination of a downwardly-depending pipe; a burner connected therewith; a tube, closed at its inner end arranged within said pipe; a supportingrod adapted to reciprocate within said tube; a casing secured to said rod; catches for retaining said casing in its normal position; a globe-support on said casing; and means for detachably securing said globe-support in position.

6. In a gas-lamp, the combination of a downwardly-extending pipe; a burner connected therewith; a tube closed at its upper end arranged within said pipe; a supportingrod adapted to reciprocate within said tube; a casing secured to said rod having a globesupport thereon.

T. In a gaslamp, the combination of a downwardly-extending pipe; a burner connected therewith; a tube closed at its upper end arranged within said pipe; asupportingrod adapted to reciprocate within said tube; and a globe-support secured to said rod.

8. In a gas-lamp, the combination of a casing having corrugations therein; aglobe-support consisting of an inner band E adapted to closely embrace said casing, and an outer outwardly and upwardly projecting band E; toothed pinions 6 carried by said band E, adapted to engage the corrugations in said casing; and a locking-band F sleeved upon said band E adapted to engage the teeth of said pinions, for the purpose specified.

9. In a gas-lamp, the combination of a casing having corrugations therein; a globe-support consisting of an inner band E adapted to closely embrace said casing; and an outer outwardly and upwardly projecting band E; toothed pinions 0 carried by said band E, adapted to engage the corrugations in said casing; and a suitable lock for said pinions, for the purpose specified.

10. In a gas-lamp, the combination of a casing having corrugations therein; a globe-supporting casing adapted to embrace the same; toothed pinions carried by said globe-support adapted to engage said corrugations; and means for locking said pinions, for the purpose specified.

In witness whereof I have hereunto set my hand and seal in the presence of two witnesses.

ALFRED ,H. HUMPHREY. IL. 3.] l/Vitnessesz ETHEL A. TELLER, OTIS A. EARL. 

